The project nestles in the middle a remote wetland allowing bird lovers to enjoy a unique view of the rare ospreys which nest less than 200m away.

Michaela said: “This is a project I’ve always loved. It’s connected so many people to ospreys and has been a huge success. It’s because of the passion people have here and their commitment, that osprey have successfully bred here in Wales.

“It’s a great conservation success story considering that breeding pairs were extinct in the UK by 1916 and have only come back to Montgomeryshire in recent years.

“For me this is a really deserving winner and I’m delighted to present them with their award.”

The observatory was the only Welsh project competing against six other projects to win the award - and it will win a £2,000 cash prize and a National Lottery Awards trophy.

And on September 21 the attraction will feature in a star-studded awards ceremony, The National Lottery Stars, broadcast on BBC One.

Emyr Evans, manager of the project, said: “It’s an honour that more than 10,000 people voted to recognise us as the best environment project, and I’m proud we’ve gained this national recognition.

“Our staff, volunteers, and our many supporters have worked hard for us to win this prestigious award.

“National Lottery funding allowed us to design and build an observatory for everyone, where families can come and ask questions, where teachers and pupils can learn about the environment, where older people can enjoy nature, and where the community can volunteer and welcome visitors - there isn’t a building anywhere in Britain like it.”